Predicted Weighted Sound Reduction Index (RW) Values of Celcon Blockwork

Sponsored by H + H CelconOct 5 2006

Block Thickness (mm)	Mass of Wall Construction (m) (Kg/m²)
	Unfinished Surfaces			Finished both sides with 13mm
	Unfinished Surfaces			Lightweight Plaster			Dense Plaster
	Solar	Standard	Hi-7/10	Solar	Standard	Hi-7/10	Solar	Standard	Hi-7/10
75	42.4	53.9	63.3	62.4	73.9	83.3	90.4	101.9	113.3
90	50.9	64.7	75.9	70.9	84.7	95.9	98.9	112.7	123.9
100	56.6	71.9	84.3	76.6	91.9	104.3	104.6	119.9	132.3
115	65.0	82.7	97.0	85.0	102.7	117.0	113.0	130.7	145.0
125	70.7	89.9	105.4	90.7	109.9	125.4	118.7	137.9	153.4
140	79.2	100.6	118.1	99.2	120.6	138.1	127.2	148.6	166.1
150	84.8	107.8	126.5	104.8	127.8	146.5	132.8	155.8	174.5
190	107.5	136.6	160.3	127.5	156.6	180.3	155.5	184.6	208.3
200	113.1	143.8	168.7	133.1	163.8	188.7	161.1	191.8	216.7
215	121.6	154.6	181.3	141.6	174.6	201.3	169.6	202.6	229.3
230	130.1	165.3	194.0	150.1	185.3	214.0	178.1	213.3	242.0
250	141.4	179.7	210.9	161.4	199.7	230.9	189.4	227.7	258.9
275	155.5	197.7	231.9	175.5	217.7	251.9	203.5	245.7	279.9
300	169.7	215.7	253.0	189.7	235.7	273.0	217.7	263.7	301.0

Block Thickness (mm)	PREDICTED WEIGHTED SOUND REDUCTION INDEX (R_W) (Db)
	Unfinished Surfaces			Finished both sides with 13mm
	Unfinished Surfaces			Lightweight Plaster			Dense Plaster
	Solar	Standard	Hi-7/10	Solar	Related Stories Thin-Joint System and EcoHomes Assessments The Story of Seabright Street – A Brighter Future from H+H Celcon Celcon Aircrete Flooring System - Fast Cost Effective Ground Floors Standard	Hi-7/10	Solar	Standard	Hi-7/10
75	33.5	36.4	38.3	38.1	40.2	41.6	42.6	44.0	45.1
90	35.7	38.6	40.5	39.7	41.8	43.3	43.7	45.2	46.4
100	36.9	39.8	41.8	40.6	42.8	44.3	44.3	46.0	47.2
115	38.6	41.5	43.4	41.9	44.1	45.7	45.3	47.0	48.3
125	39.6	42.5	44.4	42.6	44.9	46.5	45.9	47.7	48.9
140	41.0	43.9	45.8	43.7	46.1	47.7	46.7	48.6	49.9
150	41.8	44.7	46.6	44.4	46.8	48.4	47.2	49.1	50.5
190	44.7	47.6	49.5	46.7	49.2	50.9	49.1	51.2	52.6
200	45.3	48.2	50.1	47.2	49.7	51.4	49.5	51.6	53.1
215	46.2	49.0	51.0	48.0	50.5	52.2	50.2	52.3	53.8
230	47.0	49.8	51.8	48.7	51.2	53.0	50.7	52.9	54.4
250	48.0	50.9	52.8	49.6	52.1	53.9	51.5	53.7	55.2
275	49.1	52.0	53.9	50.6	53.2	54.9	52.4	54.6	56.2
300	50.2	53.0	55.0	51.5	54.1	55.9	53.2	55.5	57.1

AIRCRETE (AUTOCLAVED AERATED CONCRETE) MASS LAW: Rw = 27.7 Log (m) - 11.6

Rilem Recommended Practice: Autoclaved Aerated Concrete - Properties Testing and Design

This information has been sourced, reviewed and adapted from materials provided by H + H Celcon.

For more information on this source, please visit H + H Celcon.

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